From: Guido Guenther <[EMAIL PROTECTED]>
Signed-off-by: Avi Kivity <[EMAIL PROTECTED]>
diff --git a/qemu/hw/acpi.c b/qemu/hw/acpi.c
index 01f1354..b97b37d 100644
--- a/qemu/hw/acpi.c
+++ b/qemu/hw/acpi.c
@@ -71,6 +71,8 @@ typedef struct PIIX4PMState {
#define SMBHSTDAT1 0x06
#define SMBBLKDAT 0x07
+PIIX4PMState *pm_state;
+
static uint32_t get_pmtmr(PIIX4PMState *s)
{
uint32_t d;
@@ -476,6 +478,7 @@ i2c_bus *piix4_pm_init(PCIBus *bus, int devfn, uint32_t
smb_io_base)
s = (PIIX4PMState *)pci_register_device(bus,
"PM", sizeof(PIIX4PMState),
devfn, NULL, pm_write_config);
+ pm_state = s;
pci_conf = s->dev.config;
pci_conf[0x00] = 0x86;
pci_conf[0x01] = 0x80;
@@ -517,3 +520,13 @@ i2c_bus *piix4_pm_init(PCIBus *bus, int devfn, uint32_t
smb_io_base)
s->smbus = i2c_init_bus();
return s->smbus;
}
+
+#if defined(TARGET_I386)
+void qemu_system_powerdown(void)
+{
+ if(pm_state->pmen & PWRBTN_EN) {
+ pm_state->pmsts |= PWRBTN_EN;
+ pm_update_sci(pm_state);
+ }
+}
+#endif
diff --git a/qemu/sysemu.h b/qemu/sysemu.h
index a72a4d6..ffc468a 100644
--- a/qemu/sysemu.h
+++ b/qemu/sysemu.h
@@ -33,7 +33,7 @@ void qemu_system_powerdown_request(void);
int qemu_shutdown_requested(void);
int qemu_reset_requested(void);
int qemu_powerdown_requested(void);
-#if !defined(TARGET_SPARC)
+#if !defined(TARGET_SPARC) && !defined(TARGET_I386)
// Please implement a power failure function to signal the OS
#define qemu_system_powerdown() do{}while(0)
#else
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